Riljack power transducer

ABSTRACT

A motion transmission device for producing variable speed and power and which comprises a cone on a driven shaft and a cone on a driving shaft, the cones having a cylindrical driving wheel therebetween that is slideable between the cones and engaging the cylindrical sides thereof, the position of the intermediate driving wheel determining the relative speed of the cones.

United States Patent [72] Inventor Trevor J. Riley 1 1431 94 A" Ave.,North Surrey, British Columbia, Canada [21 1 Appl. No. 15,587

[22] Filed Mar. 2, 1970 [45] Patented Dec.7,1971

[54] RILJACK POWER TRANSDUCER 1 Claim, 3 Drawing Figs.

52 us. CI 14/193 [51] Int. Cl Fl6h 15/16 501 FieldolSearch ..74/l9l, 193

56 References Cited UNITED STATES PATENTS 2,461.258 2/1949 Brooks 74/1932,570,493 10/1951 Schmidt 74/193 2,612,784 10/1952 Patzak..... 74/1933,270,145 8/1966 Gauban 74/193 Primary ExaminerC. Husar ABSTRACT: Amotion transmission device for producing variable speed and power andwhich comprises a cone on a driven shaft and a cone on a driving shaft,the cones having a cylindrical driving wheel therebetween that isslideable between the cones and engaging the cylindrical sides thereof,1

the position of the intermediate driving wheel determining the relativespeed of the cones.

RILJACKPOWER TRANSDUCER The present invention pertains to motiontransmission devices. More specifically the present invention pertainsto variable speed transmission devices.

A principal purpose of the present invention is to provide a variablespeed transmission device which incorporates a pair of cones one ofwhich is mounted upon a driving shaft and the other of which is mountedupon a driven shaft, the cones being tapered into opposite directions soas to present a parallel cylindrical side respective'to each other whichis engaged by an intermediate driving wheel slidable along the length ofthe conical surface so as to provide a variable speed transmittingelement.

Another purpose of the present invention is to provide a variable speedtransmission device having a positive constant mechanical drive andwhichadaptable for producing variable power transmission. I

Still another purpose of the present invention is to provide a powertransducer which may be operated either mechanically, pneumatically,hydraulically or otherwise.

Still another purpose of the present invention is to provide a powertransducer incorporating conical surfaces of cones which need notnecessarily be located along parallel axes.

Still another purpose of the present invention is to provide a powertransducer wherein motion transmission may be transmitted between theouter surfaces of a pair of cones, or wherein motion transmission may beaccomplished between an inner conical surface of one cone and anexternal surface of a second cone.

Other objects of the present invention are to provide a power transducerwhich is simple in design, inexpensive to manufacture, rugged inconstruction, easy to use and efficient in operation.

These and other objects will become readily evident upon a study of thefollowing specification and the accompanying drawing wherein: FIG. 1 isa side elevation shown partly in cross section;

FIG. 2 is a cross-sectional view taken on the line 2-2 of FIG. 1; and

FIG. 3 is a cross-sectional view of a modified form of the presentinvention wherein transmission is provided between one internal and oneexternal cone, the cones being on a diagonal axis to each other and onecone being of incline different than the other.

Referring now to the drawing in detail, and more particular to FIGS. 1and 2 of the drawing at time time, the reference numeral represents apower transducer according to the present invention wherein there is adriving shaft 11 supported rotatably free in a bearing 12, the drivingshaft 11 supporting a driving cone 13 at one end thereof.

A driven shaft 14 is likewise supported rotatably free in a bearing 15,the driven shaft carrying at one end a driven cone I6.

It is to be noted that the driven shaft 14 and the driving shaft II areboth located along axes which are parallel to each other but which arenot on a common center.

An intennediate shaft 17 is supported in a bearing 18, the intermediateshaft 17 carrying at one end an intermediate driving wheel 19 as shown.The intermediate driving wheel 19 is located between the cones l3 and 16so that the periphery of the intermediate driving wheel engages both ofthe cones l3 and 16 at all times. It is to be noted that the conicalsurfaces of the cones 13 and 16 are in the vicinity of the intermediateview of the present invention driving wheel located parallel to eachother so that reposition-v position there between permits an engagementof both cones l3 and 16 by the driving wheel 19. The intermediatedriving wheel is slideable along the axes of the shaft 17, the intermediate driving wheel accordingly be slidable along the conical faces ofthe cones l3 and 16. A breaking cone positioned concentrically on theintermediate shaft 17 is positioned within the .inner side of a brakingcone cup 21, also mounted concentrically u n the intennediate shafi l7.

In operative use, it WI .now be evident that a change of speed willoccur in the motion transmitted to the driven shaft from the drivingshaft as the intermediate wheel is changed in position along the lengthbetween the cones l3 and 16. For example, as the driving wheel 19 isadvanced more closely toward the conical tip of the cone 13, it will atthe same time engage a larger diameter portion of the cone 16, therebyslowing down the transmitted speed to the driven shaft 14. Likewise,when the intermediate wheel is advancedtowards the base of the cone 13,wherein the diameter is relatively large, the wheel 19 will thus engagethe apex portion of the cone 16, thereby making the driven shaft 14 torotate more rapidly.

In a modified design of the present invention shown in FIG. 3 of thedrawing, there is illustrated a transmission provided between oneinternal cone 22 and an external cone 23, the internal cone 22 being ona shaft 24 while the external cone is on a shaft 25. The cones 22 and 23are located on diagonal axes to each other and one cone is of adifi'erent conical incline than the other cone.'The intermediate drivingwheel 19 engages the external surface of cone 22 and at the same timeengages the inner surfaceof the cone 23, these surfaces being parallelto each other, as is evident in FIG. 3, and along which accordingly theintermediate driving wheel can be moved so to engage variablediameterportions of the cones.

Thus, it is evident a construction is provided wherein motion istransmitted variably between shafts which are askew relative to eachother, and wherein one cone is positioned within the other. I

A cone inspection of FIG. 3 will further show that the angle of inclineof one cone may be varied respective to the other, and whereinaccordingly one cone may be relatively more tapered whereas the othercone is more squat, the present invention allowing a completediversification there between.

Thus there is provided a power transducer which has a wide applicationin many power transmissions.

What I now claim is:

I. In a power transducer, the combination of a variable speedtransmission device comprised of a driving shaft and a driven shaft,said driving shaft having a driving cone secured thereto, said drivenshaft having a driven cone secured thereto, and an intermediate drivingwheel between said cones for transmitting motion from said cone to saiddriven cone, said intermediate driving wheel being axially slideable soto engage different positions of the conical surfaces of said cones soto provide a variable speed transmission, said intermediate drivingwheel being mounted on a rotatable intermediate shaft having a breakingcone positioned concentrically therearound, said breaking cone beingpositioned within the inner side of a breaking cup mountedconcentrically upon said intennediate shaft, said driven shaft and saiddriving shaft being located on axes which are askew to each other, oneof said cones comprising a hollow cone having a conical interiorsidewall, the other said cone protruding inwardly into said hollow conewith said intennediate driving wheel engaging said conical surface ofsaid cones and said cones each tapering in directions away from eachother.

" i I i I t

1. In a power transducer, the combination of a variable speedtransmission device comprised of a driving shaft and a driven shaft,said driving shaft having a driving cone secured thereto, said drivenshaft having a driven cone secured thereto, and an intermediate drivingwheel between said cones for transmitting motion from said cone to saiddriven cone, said intermediate driving wheel being axially slideable soto engage different positions of the conical surfaces of said cones soto provide a variable speed transmission, said intermediate drivingwheel being mounted on a rotatable intermediate shaft having a breakingcone positioned concentrically therearound, said breaking cone beingpositioned within the inner side of a breaking cup mountedconcentrically upon said intermediate shaft, said driven shaft and saiddriving shaft being located on axes which are eskew to each other, oneof said cones comprising a hollow cone having a conical interiorsidewall, the other said cone protruding inwardly into said hollow conewith said intermediate driving wheel engaging said conical surface ofsaid cones and said cones each tapering iN directions away from eachother.